Drying oven



.Feb. 22, 1927. 1,618,380 J. ROLLER I DRYING ovau Fi led Dec. 14, 1926 '2 Sheets-Sheet a 5 I a I 1 I I 5 4 ATTORNEYSL Patented Feb. 22, 1927.

JOHN KOLLER, OF'NEWARK, NEW JERSEY,

00., or NEWARK, new JERSEY,

PATENT OFFICE.

ASSIGIIOB TO THE AMERICAN COAL CHUTE A CQBFORATION OF NEW JERSEY.

DRYING OVEN.

Application filed December This invention relates to improvements in drying ovens; and the invention has reference to an improved construction of drying oven especially adapted for drying enameled or varnished leather and similar products.

The invention has forits object to provide a novel construction of drying oven provided on its interior sides with vertically spaced supports to receive the stretching frames or carriers upon which "wet enameled or varnished hides or other products are mounted so that the same may be positioned one above the other within the oven, whereby, when. the latter is closed and heat is 7 tr d ced Wi in t e in ior of he ame,

the product may be dried. In' ovens of this character and for such purposes it is highly desirable to avoid the collection of dust, dirt or other foreign substances Within the. same so that the product under treatment is protected from contact. with such dust, dirt, etc, not only while undergoing the drying process within the oven, butespecially when placing the product within and removing the same fromthe oven. WVith the object of both preventing the accumulation of and the removal of such dust, dlrt, etc, from the oven interior, and especially from the supports forthe material to be treated,

I have provided, by the present invention, a novel dust collecting compartment separate and distinct from the oven interior, and a novel construction of product supporting structure having means of communication with said dust collecting compartment, whereby dust, dirt, splinters from the stretching frames and other foreign sub stances tending to lodge on said supporting structure are deflected into and deposited in said dust collecting compartment, to thus eliminate riskof such substances dropping upon the enameled or varnished surfaces of theproduct with consequent injury to such surfaces. I

Other objects of this invention not at this time; more particularly enumerated, will'be clearly understood from the following de tailed description of the same.

The invention is clearly illustrated in the accompanying drawings, in whichi V Figure 1 is a perspective view of an oven made according to and embodying the principles of this invention, the closing door sections being removed from one oven cO11 partment to showthe interioirthereof, and

14, 1926. Serial no. 154,7se.

the structure being broken away at one side to show the dust collecting compartment. Figure 2 is a fragmentary horizontal section on an enlarged scale, taken on line 22 in said Figure 1. Figure 3 is a fragmentary vertical transverse section, taken on line 3 3 in said Figure 2. Figure 4 is a, longitudinal section,"taken on line 4+4 in Figure 3. Figure 5 is anotherlongitudina'l section, taken on line 55 in saidF igure 3; Similar characters of reference are employed in all of the hereinabove described views, to indicate corresponding parts.

In general the novel construction of oven, made according to my present invention, is usually constructed of sheet metal supported on a frame-work of fabricated angle iron, but it will be understood that such construction is merely preferable and is hereafter described as illustrative orby way of example, and that the general principles of my present invention may be embodied in structures utilizing other materials. J 1 As indicated in the drawings, the oven structure is ordinarily arranged to provide a plurality of oven compartments disposed side by side. In the main the structure comprises, at each side and at the front of each oven compartment, pairs of-laterally spaced apart vertical uprights 6 of angle iron which are opposed to each other so that their transverse flanges may be joined by a closing panel or end wall 7 similarly arranged uprights being provided at the rear end of each oven compartment to, which, the 'rear end wall members 8 may be secured. Intenconnecti'ng the upper ends of the uprights 6 are roof-frame members v9 for supporting the top wall 10.

V Secured to and between the side flanges of the forward and rearuprightsth'by means of bolts 11, or any other suitable form of fastening means, are side wall, members extending from the open front to the closed rear of the oven compartments.

I Secured to the front upright structure, at each side of each oven compartment, are vertically disposed angle irons 12, provided in their outwardly projecting flanges with downwardly obliqueindented slots 13 to receive the ears of removable front door panels 14, which are retained in closed position across the front of each oven compartment by slide-bolts 15 adapted tobe engaged with bolt sockets 16 with which said outwardly ill projecting flanges of the angle irons 12 are also provided; all of which is old in the art and for which no claim is made in the instant case.

i-krranged in the bottom of each oven coinpartment, generally constructed as above described, a suitable heat delivery means, such, for example, as the steam radiator structure 17 shown in Figure l.

The side wall. members ll are prelerably made of sheetmetal, and the same :lorined at vertically spaced intervals with outwardly pressed ribs extending from the forward open end to the closed rearward end of the oven compartment These ribs comprise a horizontal top flange 18 from the outer llrce edge of which extends a downwardly and inwardly inclined bracing flange 19. Said ribs thus formed are arranged on opposite sides of the oven compartment in opposed pairs vertically spared apart to extend from the lower to the upper portion ol the oven eom nirtment, and thus serve as supports to slidingly receive and hold the stretching frames 20 upon which the enameled hides 21, or other product to be dried, are carried. In so functioning the top flanges 1S serve as the direct supports with which the stretching frames are slidingly engaged.

The side wall members ll of adjoining oven conipartment-s are arranged back to hac and spaced apart, as supported by the laterally spaced uprights (3, thus iroviding intermediate adjoining oven compartments closed dust collecting con'ipartmeins In order to discharge any dust, dirt splinters or other undesired foreign substances which may lodge 011 the top-flanges 18 of the supporting ribs, said top-flanges 18 are provided throughout their length with discharge openings 23, the forward and rear edges of which are preferably formed to provide ehanilered Ii )3 24, so as to present no sharp or rasping edges to the stretching frames 20, when the latter are slid thereupon.

The said discharge opening of said supporting rib top-flanges l8 open downwardly toward the inner downwardly inclined surfaces oi. the underlying bracing flanges 19, which surfaces serve as deflecting chutes adapted to discharge any substances falling thereon into the interior oi the adjacent dust collecting compartment. It will be clearly understood that the sliding movement of the stretching :lrames 20 on the siuiporting rib top-llanges 15%, as said stretching :lraines are inserted into or withdrawn from the oven compartment, produces a sweeping or scouring action relative to both the engaged side of said frames and to the supporting rib top-l'langcs 18, which tends to dislodge any dirt, dust, loose splinters or other foreign substances from such surfaces and sweep the same through said discharge openings 22 thus at once ismoving the same from the interior oi. the oven compartment, and depositing the same in the tKlJtlCGllt dust collecting compartments One or both of the side wall members 11 of each oven compartment may be provided in their lower portions with removable doors filo, which, when opened, give access to the dust collecting compartments 22 for the removal, from time to time, of accumulations of dirt therefrom. i

While I have described the dust collecting compartment as closed at both sides by the side Will members ll of adjoining oven compartments, it will nevertheless be understood that where the ovens are built as single units, or in connection. with the outer end ovens of a bank or series thereof, the outer sides of such dust collecting compartment-s may be closed by any suitable l'or'm olf exterirn: wall.

From the above description it will be ob vious that l. have provided an improved drying oven which otters unusual advantages, rspecially as to cleanliness which is so desir able in connection with drying enameledfor varnished leather, fabrics or similar products.

I am aware that some changes may be made in the various arrangements and combinations of the devices and parts making up the above described drying oven structure, as well as in the details of the con struction of said parts, without departing from the scope of my present inventionas set lt'orth in the foregoing specification, and as delined in the appended claims. Hence, I do not limitmy present invention to the exact details of the construction thereof as herein shown and described.

I claim i l. A drying oven, comprising a support ing frame structure providing an open front at the forward end of said oven; means For closing said open front; back, top and side walls to enclose the oven compartment; said side walls having on their inner faces opposed vertically spaced h0rizontal :t'rame-receiving supporting ribs, and means associated with said supporting ribs for discharging dirt or foreign matter there'lfron'i. a

2. Adrying oven, conun'ising a support ing frame structure providing an open front at the forward. end of said oven;

ineans t'or elosingsaidopen front; back,

top and side walls to enclose the oven cont partment: said side walls having on their inner tacos opposed vertically spaced hori-i zontal frame-receiving supporting ribs; means at the sides of said oven to provide dirt collecting compartments; and means associated with said supportingribs for discharging dirt or foreign matter there from into said collecting compartments.

o. A' drying oven, comprising a support;

ing frame structure providing an open front at the forward end of said oven; means for closing said open front; back, top and side walls to enclose the oven compartment; said side walls having hollow infront at the forward end of'said oven;

means for closing said open front; back, top and side walls to enclose the oven compartment; means at the sides of said oven to provide dirt collecting compartments;

said sidewalls of saidoven having hollow inwardly projecting horizontal frame-receiving supporting ribs, said ribs being opposed one to another on opposite sides of the oven compartment in vertically spaced apart pairs, and the upper sides of said ribs having openings therein to discharge dirt or foreign matter therefrom and through their hollow interiors into said dirt collecting compartments. 7 I

5. In a drying oven of the kind described, the provision in the side walls thereof of hollow supporting ribs having openings in their top sides to discharge dirt and foreign matter therefrom and through their hollow interiors out of the oven interior.

6. In a drying oven of. the kind described, means at the sides thereof to provide dirt collecting compartments, and the side walls of said oven having hollow supporting ribs having openings in their top sides to discharge dirt and foreign matter therefrom andthrough their hollow interiors into said dirt collecting compart ments.

7. In a drying oven of the kind described, the provision in the side walls thereof of hollow pressed-out supporting ribs, each comprising a horizontal top-flange and a downwardly and inwardly inclined brace flange, said top-flange having openings through its length to discharge dirt and foreign matter therefrom and upon the inner side of the inclined ibrace flange to thereby remove such dirt and foreign matter fromgthe oven interior.

8. Ina drying oven of the kind described, the provision in the side walls thereof of hollow pressed-out supporting ribs, each comprising a horizontal top-flange and a downwardly and inwardly inclined brace flange, said top-flange having openings through its length to discharge dirt and foreign matter therefrom and upon the inner side of the inclined brace flange to thereby remove such dirt and foreign matter from the oven interior, and the forward and rear margins of said openings being formed to provide downwardly and inwardly chamfered lips.

In testimony that I claim the invention set forth above I have hereunto set my hand this 13th day of December, 1926.

JOHN KOLLER. 

